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1 | jermar | 1 | /* |
319 | jermar | 2 | * Copyright (C) 2003-2004 Jakub Jermar |
1 | jermar | 3 | * All rights reserved. |
4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
1769 | jermar | 29 | /** @addtogroup mips32 |
1702 | cejka | 30 | * @{ |
31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
341 | jermar | 35 | #ifndef __mips32_ASM_H__ |
36 | #define __mips32_ASM_H__ |
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1 | jermar | 37 | |
173 | jermar | 38 | #include <arch/types.h> |
313 | palkovsky | 39 | #include <typedefs.h> |
173 | jermar | 40 | #include <config.h> |
41 | |||
1 | jermar | 42 | |
326 | palkovsky | 43 | static inline void cpu_sleep(void) |
44 | { |
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45 | /* Most of the simulators do not support */ |
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46 | /* __asm__ volatile ("wait"); */ |
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47 | } |
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48 | |||
173 | jermar | 49 | /** Return base address of current stack |
50 | * |
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51 | * Return the base address of the current stack. |
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52 | * The stack is assumed to be STACK_SIZE bytes long. |
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180 | jermar | 53 | * The stack must start on page boundary. |
173 | jermar | 54 | */ |
1780 | jermar | 55 | static inline uintptr_t get_stack_base(void) |
173 | jermar | 56 | { |
1780 | jermar | 57 | uintptr_t v; |
173 | jermar | 58 | |
59 | __asm__ volatile ("and %0, $29, %1\n" : "=r" (v) : "r" (~(STACK_SIZE-1))); |
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60 | |||
61 | return v; |
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62 | } |
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63 | |||
313 | palkovsky | 64 | extern void cpu_halt(void); |
1780 | jermar | 65 | extern void asm_delay_loop(uint32_t t); |
66 | extern void userspace_asm(uintptr_t ustack, uintptr_t uspace_uarg, |
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67 | uintptr_t entry); |
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195 | vana | 68 | |
1 | jermar | 69 | #endif |
1702 | cejka | 70 | |
1769 | jermar | 71 | /** @} |
1702 | cejka | 72 | */ |